Nokia 6610 Troubleshooting Instructions

CCS Technical Documentation Troubleshooting Instructions
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Transmitter troubleshooting diagram
Check output signal level:
TX signal found ?
Yes
Tune
dead
start TX power level
Tune Tx DAC values
No
PA & ant switch
TX troubleshooting
TX OK
+32...+33dBm @897.4 MHz (GSM900)
+29...+30dBm @1747.8 MHz
(GSM1800 & GSM1900)
OK ?
Check
all power
levels,
OK ?
TX power
levels,
OK ?
No
Yes
No
Check output signal
on 500 MHZ span
Signal found on
incorrect frequency ?
Yes
Synthesizer
troubleshooting
Check with RF probe
signal level on
PA input >=0dBm (*
OK ?
Yes
HELGA
troubleshooting
No
Yes
tuning and check
tuned RAC values:
Highest level~700...900
Lowest level ~190...210
Base levle ~160...190
Major differences ?
Check with oscilloscope:
PA ctrl voltage
>1.5V peak OK ?
No
troubleshooting
No
Check control loop
components
OK ?
Replace HELGA
*(When 1kOhm passive probe is used,
correct the measurement result by +26dB
Replace
faulty
component(s)
Yes
Yes
Yes
Yes

Nokia 6610 Specifications

General

Display	CSTN, 4096 colors
Weight	84 g (2.96 oz)
Internal Memory	4 MB
Network	GSM
Infrared Port	Yes
Java	Yes, MIDP 1.0
Technology	GSM
2G bands	GSM 900 / 1800 / 1900
GPRS	Class 6
EDGE	No
SIM	Mini-SIM
Type	CSTN, 4096 colors
Call records	10 dialed, 10 received, 10 missed calls
Internal	4 MB
Loudspeaker	No
3.5mm jack	No
Messaging	SMS, EMS, MMS
Radio	No
Games	Yes
Predictive text input	Yes
SMS to many	Yes
Calculator	Yes
Stopwatch	Yes
Stand-by	Up to 150 h
Brand	Nokia
Bluetooth	No
Battery	Removable Li-Ion battery
Announced	2002
Size	1.5 inches
Resolution	128 x 128 pixels
Phonebook	500 entries
Alert types	Vibration; Downloadable polyphonic ringtones
Colors	Blue, Red
WAP	v1.2.1
Dimensions	106 x 45 x 17.5 mm